The user will need to have a seal on their body from the Death Taking Seal technique. They will then find a body that has been weakened and near death. They will then transfer chakra to the body and place the same seal that they used from their body.

The seal will make the body transform into the being that the seal was used from. The body will have all the same techniques, knowledge, and Kekkei Genkais that they possessed before hand. They will act as though they were normal and have the same thoughts unless the user had manipulated them before hand.

The user can also use the Crossed Tiger seal to control their victim and summon them from the proper seal on their body. They won't have any control over what they do or think as the user controls them. The user will also be able to see through the victims eyes at all times whenever they wish to. But the victim cannot see through the users eyes unless allowed from the user themselves.

Once the user were to die all of the reincarnations would die off. This is because the seals on the users body will be deactivated and no longer be in use. Although, there is a way for the victim to live for another few seconds by using a Chaos Juinjutsu and the user would be reanimated.